2 * Copyright (C) 2005 - 2010 ServerEngines
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
10 * Contact Information:
11 * linux-drivers@serverengines.com
14 * 209 N. Fair Oaks Ave
20 #include <asm/div64.h>
22 MODULE_VERSION(DRV_VER);
23 MODULE_DEVICE_TABLE(pci, be_dev_ids);
24 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
25 MODULE_AUTHOR("ServerEngines Corporation");
26 MODULE_LICENSE("GPL");
28 static unsigned int rx_frag_size = 2048;
29 static unsigned int num_vfs;
30 module_param(rx_frag_size, uint, S_IRUGO);
31 module_param(num_vfs, uint, S_IRUGO);
32 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
33 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
35 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
36 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
37 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
38 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
39 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
42 MODULE_DEVICE_TABLE(pci, be_dev_ids);
43 /* UE Status Low CSR */
44 static char *ue_status_low_desc[] = {
78 /* UE Status High CSR */
79 static char *ue_status_hi_desc[] = {
114 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
116 struct be_dma_mem *mem = &q->dma_mem;
118 pci_free_consistent(adapter->pdev, mem->size,
122 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
123 u16 len, u16 entry_size)
125 struct be_dma_mem *mem = &q->dma_mem;
127 memset(q, 0, sizeof(*q));
129 q->entry_size = entry_size;
130 mem->size = len * entry_size;
131 mem->va = pci_alloc_consistent(adapter->pdev, mem->size, &mem->dma);
134 memset(mem->va, 0, mem->size);
138 static void be_intr_set(struct be_adapter *adapter, bool enable)
140 u8 __iomem *addr = adapter->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
141 u32 reg = ioread32(addr);
142 u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
144 if (adapter->eeh_err)
147 if (!enabled && enable)
148 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
149 else if (enabled && !enable)
150 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
154 iowrite32(reg, addr);
157 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
160 val |= qid & DB_RQ_RING_ID_MASK;
161 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
164 iowrite32(val, adapter->db + DB_RQ_OFFSET);
167 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
170 val |= qid & DB_TXULP_RING_ID_MASK;
171 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
174 iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
177 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
178 bool arm, bool clear_int, u16 num_popped)
181 val |= qid & DB_EQ_RING_ID_MASK;
183 if (adapter->eeh_err)
187 val |= 1 << DB_EQ_REARM_SHIFT;
189 val |= 1 << DB_EQ_CLR_SHIFT;
190 val |= 1 << DB_EQ_EVNT_SHIFT;
191 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
192 iowrite32(val, adapter->db + DB_EQ_OFFSET);
195 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
198 val |= qid & DB_CQ_RING_ID_MASK;
200 if (adapter->eeh_err)
204 val |= 1 << DB_CQ_REARM_SHIFT;
205 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
206 iowrite32(val, adapter->db + DB_CQ_OFFSET);
209 static int be_mac_addr_set(struct net_device *netdev, void *p)
211 struct be_adapter *adapter = netdev_priv(netdev);
212 struct sockaddr *addr = p;
215 if (!is_valid_ether_addr(addr->sa_data))
216 return -EADDRNOTAVAIL;
218 /* MAC addr configuration will be done in hardware for VFs
219 * by their corresponding PFs. Just copy to netdev addr here
221 if (!be_physfn(adapter))
224 status = be_cmd_pmac_del(adapter, adapter->if_handle, adapter->pmac_id);
228 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
229 adapter->if_handle, &adapter->pmac_id);
232 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
237 void netdev_stats_update(struct be_adapter *adapter)
239 struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
240 struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
241 struct be_port_rxf_stats *port_stats =
242 &rxf_stats->port[adapter->port_num];
243 struct net_device_stats *dev_stats = &adapter->netdev->stats;
244 struct be_erx_stats *erx_stats = &hw_stats->erx;
246 dev_stats->rx_packets = drvr_stats(adapter)->be_rx_pkts;
247 dev_stats->tx_packets = drvr_stats(adapter)->be_tx_pkts;
248 dev_stats->rx_bytes = drvr_stats(adapter)->be_rx_bytes;
249 dev_stats->tx_bytes = drvr_stats(adapter)->be_tx_bytes;
251 /* bad pkts received */
252 dev_stats->rx_errors = port_stats->rx_crc_errors +
253 port_stats->rx_alignment_symbol_errors +
254 port_stats->rx_in_range_errors +
255 port_stats->rx_out_range_errors +
256 port_stats->rx_frame_too_long +
257 port_stats->rx_dropped_too_small +
258 port_stats->rx_dropped_too_short +
259 port_stats->rx_dropped_header_too_small +
260 port_stats->rx_dropped_tcp_length +
261 port_stats->rx_dropped_runt +
262 port_stats->rx_tcp_checksum_errs +
263 port_stats->rx_ip_checksum_errs +
264 port_stats->rx_udp_checksum_errs;
266 /* no space in linux buffers: best possible approximation */
267 dev_stats->rx_dropped =
268 erx_stats->rx_drops_no_fragments[adapter->rx_obj.q.id];
270 /* detailed rx errors */
271 dev_stats->rx_length_errors = port_stats->rx_in_range_errors +
272 port_stats->rx_out_range_errors +
273 port_stats->rx_frame_too_long;
275 /* receive ring buffer overflow */
276 dev_stats->rx_over_errors = 0;
278 dev_stats->rx_crc_errors = port_stats->rx_crc_errors;
280 /* frame alignment errors */
281 dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors;
283 /* receiver fifo overrun */
284 /* drops_no_pbuf is no per i/f, it's per BE card */
285 dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow +
286 port_stats->rx_input_fifo_overflow +
287 rxf_stats->rx_drops_no_pbuf;
288 /* receiver missed packetd */
289 dev_stats->rx_missed_errors = 0;
291 /* packet transmit problems */
292 dev_stats->tx_errors = 0;
294 /* no space available in linux */
295 dev_stats->tx_dropped = 0;
297 dev_stats->multicast = port_stats->rx_multicast_frames;
298 dev_stats->collisions = 0;
300 /* detailed tx_errors */
301 dev_stats->tx_aborted_errors = 0;
302 dev_stats->tx_carrier_errors = 0;
303 dev_stats->tx_fifo_errors = 0;
304 dev_stats->tx_heartbeat_errors = 0;
305 dev_stats->tx_window_errors = 0;
308 void be_link_status_update(struct be_adapter *adapter, bool link_up)
310 struct net_device *netdev = adapter->netdev;
312 /* If link came up or went down */
313 if (adapter->link_up != link_up) {
314 adapter->link_speed = -1;
316 netif_start_queue(netdev);
317 netif_carrier_on(netdev);
318 printk(KERN_INFO "%s: Link up\n", netdev->name);
320 netif_stop_queue(netdev);
321 netif_carrier_off(netdev);
322 printk(KERN_INFO "%s: Link down\n", netdev->name);
324 adapter->link_up = link_up;
328 /* Update the EQ delay n BE based on the RX frags consumed / sec */
329 static void be_rx_eqd_update(struct be_adapter *adapter)
331 struct be_eq_obj *rx_eq = &adapter->rx_eq;
332 struct be_drvr_stats *stats = &adapter->stats.drvr_stats;
336 if (!rx_eq->enable_aic)
340 if (time_before(now, stats->rx_fps_jiffies)) {
341 stats->rx_fps_jiffies = now;
345 /* Update once a second */
346 if ((now - stats->rx_fps_jiffies) < HZ)
349 stats->be_rx_fps = (stats->be_rx_frags - stats->be_prev_rx_frags) /
350 ((now - stats->rx_fps_jiffies) / HZ);
352 stats->rx_fps_jiffies = now;
353 stats->be_prev_rx_frags = stats->be_rx_frags;
354 eqd = stats->be_rx_fps / 110000;
356 if (eqd > rx_eq->max_eqd)
357 eqd = rx_eq->max_eqd;
358 if (eqd < rx_eq->min_eqd)
359 eqd = rx_eq->min_eqd;
362 if (eqd != rx_eq->cur_eqd)
363 be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd);
365 rx_eq->cur_eqd = eqd;
368 static struct net_device_stats *be_get_stats(struct net_device *dev)
373 static u32 be_calc_rate(u64 bytes, unsigned long ticks)
377 do_div(rate, ticks / HZ);
378 rate <<= 3; /* bytes/sec -> bits/sec */
379 do_div(rate, 1000000ul); /* MB/Sec */
384 static void be_tx_rate_update(struct be_adapter *adapter)
386 struct be_drvr_stats *stats = drvr_stats(adapter);
389 /* Wrapped around? */
390 if (time_before(now, stats->be_tx_jiffies)) {
391 stats->be_tx_jiffies = now;
395 /* Update tx rate once in two seconds */
396 if ((now - stats->be_tx_jiffies) > 2 * HZ) {
397 stats->be_tx_rate = be_calc_rate(stats->be_tx_bytes
398 - stats->be_tx_bytes_prev,
399 now - stats->be_tx_jiffies);
400 stats->be_tx_jiffies = now;
401 stats->be_tx_bytes_prev = stats->be_tx_bytes;
405 static void be_tx_stats_update(struct be_adapter *adapter,
406 u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
408 struct be_drvr_stats *stats = drvr_stats(adapter);
410 stats->be_tx_wrbs += wrb_cnt;
411 stats->be_tx_bytes += copied;
412 stats->be_tx_pkts += (gso_segs ? gso_segs : 1);
414 stats->be_tx_stops++;
417 /* Determine number of WRB entries needed to xmit data in an skb */
418 static u32 wrb_cnt_for_skb(struct sk_buff *skb, bool *dummy)
420 int cnt = (skb->len > skb->data_len);
422 cnt += skb_shinfo(skb)->nr_frags;
424 /* to account for hdr wrb */
427 /* add a dummy to make it an even num */
432 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
436 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
438 wrb->frag_pa_hi = upper_32_bits(addr);
439 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
440 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
443 static void wrb_fill_hdr(struct be_eth_hdr_wrb *hdr, struct sk_buff *skb,
444 bool vlan, u32 wrb_cnt, u32 len)
446 memset(hdr, 0, sizeof(*hdr));
448 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
450 if (skb_is_gso(skb)) {
451 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
452 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
453 hdr, skb_shinfo(skb)->gso_size);
454 if (skb_is_gso_v6(skb))
455 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
456 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
458 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
459 else if (is_udp_pkt(skb))
460 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
463 if (vlan && vlan_tx_tag_present(skb)) {
464 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
465 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag,
466 hdr, vlan_tx_tag_get(skb));
469 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
470 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
471 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
472 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
475 static void unmap_tx_frag(struct pci_dev *pdev, struct be_eth_wrb *wrb,
480 be_dws_le_to_cpu(wrb, sizeof(*wrb));
482 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
485 pci_unmap_single(pdev, dma, wrb->frag_len,
488 pci_unmap_page(pdev, dma, wrb->frag_len,
493 static int make_tx_wrbs(struct be_adapter *adapter,
494 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
498 struct pci_dev *pdev = adapter->pdev;
499 struct sk_buff *first_skb = skb;
500 struct be_queue_info *txq = &adapter->tx_obj.q;
501 struct be_eth_wrb *wrb;
502 struct be_eth_hdr_wrb *hdr;
503 bool map_single = false;
506 hdr = queue_head_node(txq);
508 map_head = txq->head;
510 if (skb->len > skb->data_len) {
511 int len = skb_headlen(skb);
512 busaddr = pci_map_single(pdev, skb->data, len,
514 if (pci_dma_mapping_error(pdev, busaddr))
517 wrb = queue_head_node(txq);
518 wrb_fill(wrb, busaddr, len);
519 be_dws_cpu_to_le(wrb, sizeof(*wrb));
524 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
525 struct skb_frag_struct *frag =
526 &skb_shinfo(skb)->frags[i];
527 busaddr = pci_map_page(pdev, frag->page,
529 frag->size, PCI_DMA_TODEVICE);
530 if (pci_dma_mapping_error(pdev, busaddr))
532 wrb = queue_head_node(txq);
533 wrb_fill(wrb, busaddr, frag->size);
534 be_dws_cpu_to_le(wrb, sizeof(*wrb));
536 copied += frag->size;
540 wrb = queue_head_node(txq);
542 be_dws_cpu_to_le(wrb, sizeof(*wrb));
546 wrb_fill_hdr(hdr, first_skb, adapter->vlan_grp ? true : false,
548 be_dws_cpu_to_le(hdr, sizeof(*hdr));
552 txq->head = map_head;
554 wrb = queue_head_node(txq);
555 unmap_tx_frag(pdev, wrb, map_single);
557 copied -= wrb->frag_len;
563 static netdev_tx_t be_xmit(struct sk_buff *skb,
564 struct net_device *netdev)
566 struct be_adapter *adapter = netdev_priv(netdev);
567 struct be_tx_obj *tx_obj = &adapter->tx_obj;
568 struct be_queue_info *txq = &tx_obj->q;
569 u32 wrb_cnt = 0, copied = 0;
570 u32 start = txq->head;
571 bool dummy_wrb, stopped = false;
573 wrb_cnt = wrb_cnt_for_skb(skb, &dummy_wrb);
575 copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb);
577 /* record the sent skb in the sent_skb table */
578 BUG_ON(tx_obj->sent_skb_list[start]);
579 tx_obj->sent_skb_list[start] = skb;
581 /* Ensure txq has space for the next skb; Else stop the queue
582 * *BEFORE* ringing the tx doorbell, so that we serialze the
583 * tx compls of the current transmit which'll wake up the queue
585 atomic_add(wrb_cnt, &txq->used);
586 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
588 netif_stop_queue(netdev);
592 be_txq_notify(adapter, txq->id, wrb_cnt);
594 be_tx_stats_update(adapter, wrb_cnt, copied,
595 skb_shinfo(skb)->gso_segs, stopped);
598 dev_kfree_skb_any(skb);
603 static int be_change_mtu(struct net_device *netdev, int new_mtu)
605 struct be_adapter *adapter = netdev_priv(netdev);
606 if (new_mtu < BE_MIN_MTU ||
607 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
608 (ETH_HLEN + ETH_FCS_LEN))) {
609 dev_info(&adapter->pdev->dev,
610 "MTU must be between %d and %d bytes\n",
612 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
615 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
616 netdev->mtu, new_mtu);
617 netdev->mtu = new_mtu;
622 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
623 * If the user configures more, place BE in vlan promiscuous mode.
625 static int be_vid_config(struct be_adapter *adapter, bool vf, u32 vf_num)
627 u16 vtag[BE_NUM_VLANS_SUPPORTED];
633 if_handle = adapter->vf_cfg[vf_num].vf_if_handle;
634 vtag[0] = cpu_to_le16(adapter->vf_cfg[vf_num].vf_vlan_tag);
635 status = be_cmd_vlan_config(adapter, if_handle, vtag, 1, 1, 0);
638 if (adapter->vlans_added <= adapter->max_vlans) {
639 /* Construct VLAN Table to give to HW */
640 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
641 if (adapter->vlan_tag[i]) {
642 vtag[ntags] = cpu_to_le16(i);
646 status = be_cmd_vlan_config(adapter, adapter->if_handle,
649 status = be_cmd_vlan_config(adapter, adapter->if_handle,
656 static void be_vlan_register(struct net_device *netdev, struct vlan_group *grp)
658 struct be_adapter *adapter = netdev_priv(netdev);
659 struct be_eq_obj *rx_eq = &adapter->rx_eq;
660 struct be_eq_obj *tx_eq = &adapter->tx_eq;
662 be_eq_notify(adapter, rx_eq->q.id, false, false, 0);
663 be_eq_notify(adapter, tx_eq->q.id, false, false, 0);
664 adapter->vlan_grp = grp;
665 be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
666 be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
669 static void be_vlan_add_vid(struct net_device *netdev, u16 vid)
671 struct be_adapter *adapter = netdev_priv(netdev);
673 adapter->vlans_added++;
674 if (!be_physfn(adapter))
677 adapter->vlan_tag[vid] = 1;
678 if (adapter->vlans_added <= (adapter->max_vlans + 1))
679 be_vid_config(adapter, false, 0);
682 static void be_vlan_rem_vid(struct net_device *netdev, u16 vid)
684 struct be_adapter *adapter = netdev_priv(netdev);
686 adapter->vlans_added--;
687 vlan_group_set_device(adapter->vlan_grp, vid, NULL);
689 if (!be_physfn(adapter))
692 adapter->vlan_tag[vid] = 0;
693 if (adapter->vlans_added <= adapter->max_vlans)
694 be_vid_config(adapter, false, 0);
697 static void be_set_multicast_list(struct net_device *netdev)
699 struct be_adapter *adapter = netdev_priv(netdev);
701 if (netdev->flags & IFF_PROMISC) {
702 be_cmd_promiscuous_config(adapter, adapter->port_num, 1);
703 adapter->promiscuous = true;
707 /* BE was previously in promiscous mode; disable it */
708 if (adapter->promiscuous) {
709 adapter->promiscuous = false;
710 be_cmd_promiscuous_config(adapter, adapter->port_num, 0);
713 /* Enable multicast promisc if num configured exceeds what we support */
714 if (netdev->flags & IFF_ALLMULTI ||
715 netdev_mc_count(netdev) > BE_MAX_MC) {
716 be_cmd_multicast_set(adapter, adapter->if_handle, NULL,
717 &adapter->mc_cmd_mem);
721 be_cmd_multicast_set(adapter, adapter->if_handle, netdev,
722 &adapter->mc_cmd_mem);
727 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
729 struct be_adapter *adapter = netdev_priv(netdev);
732 if (!adapter->sriov_enabled)
735 if (!is_valid_ether_addr(mac) || (vf >= num_vfs))
738 if (adapter->vf_cfg[vf].vf_pmac_id != BE_INVALID_PMAC_ID)
739 status = be_cmd_pmac_del(adapter,
740 adapter->vf_cfg[vf].vf_if_handle,
741 adapter->vf_cfg[vf].vf_pmac_id);
743 status = be_cmd_pmac_add(adapter, mac,
744 adapter->vf_cfg[vf].vf_if_handle,
745 &adapter->vf_cfg[vf].vf_pmac_id);
748 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
751 memcpy(adapter->vf_cfg[vf].vf_mac_addr, mac, ETH_ALEN);
756 static int be_get_vf_config(struct net_device *netdev, int vf,
757 struct ifla_vf_info *vi)
759 struct be_adapter *adapter = netdev_priv(netdev);
761 if (!adapter->sriov_enabled)
768 vi->tx_rate = adapter->vf_cfg[vf].vf_tx_rate;
769 vi->vlan = adapter->vf_cfg[vf].vf_vlan_tag;
771 memcpy(&vi->mac, adapter->vf_cfg[vf].vf_mac_addr, ETH_ALEN);
776 static int be_set_vf_vlan(struct net_device *netdev,
777 int vf, u16 vlan, u8 qos)
779 struct be_adapter *adapter = netdev_priv(netdev);
782 if (!adapter->sriov_enabled)
785 if ((vf >= num_vfs) || (vlan > 4095))
789 adapter->vf_cfg[vf].vf_vlan_tag = vlan;
790 adapter->vlans_added++;
792 adapter->vf_cfg[vf].vf_vlan_tag = 0;
793 adapter->vlans_added--;
796 status = be_vid_config(adapter, true, vf);
799 dev_info(&adapter->pdev->dev,
800 "VLAN %d config on VF %d failed\n", vlan, vf);
804 static int be_set_vf_tx_rate(struct net_device *netdev,
807 struct be_adapter *adapter = netdev_priv(netdev);
810 if (!adapter->sriov_enabled)
813 if ((vf >= num_vfs) || (rate < 0))
819 adapter->vf_cfg[vf].vf_tx_rate = rate;
820 status = be_cmd_set_qos(adapter, rate / 10, vf);
823 dev_info(&adapter->pdev->dev,
824 "tx rate %d on VF %d failed\n", rate, vf);
828 static void be_rx_rate_update(struct be_adapter *adapter)
830 struct be_drvr_stats *stats = drvr_stats(adapter);
834 if (time_before(now, stats->be_rx_jiffies)) {
835 stats->be_rx_jiffies = now;
839 /* Update the rate once in two seconds */
840 if ((now - stats->be_rx_jiffies) < 2 * HZ)
843 stats->be_rx_rate = be_calc_rate(stats->be_rx_bytes
844 - stats->be_rx_bytes_prev,
845 now - stats->be_rx_jiffies);
846 stats->be_rx_jiffies = now;
847 stats->be_rx_bytes_prev = stats->be_rx_bytes;
850 static void be_rx_stats_update(struct be_adapter *adapter,
851 u32 pktsize, u16 numfrags)
853 struct be_drvr_stats *stats = drvr_stats(adapter);
855 stats->be_rx_compl++;
856 stats->be_rx_frags += numfrags;
857 stats->be_rx_bytes += pktsize;
861 static inline bool do_pkt_csum(struct be_eth_rx_compl *rxcp, bool cso)
863 u8 l4_cksm, ip_version, ipcksm, tcpf = 0, udpf = 0, ipv6_chk;
865 l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp);
866 ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp);
867 ip_version = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp);
869 tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
870 udpf = AMAP_GET_BITS(struct amap_eth_rx_compl, udpf, rxcp);
872 ipv6_chk = (ip_version && (tcpf || udpf));
874 return ((l4_cksm && ipv6_chk && ipcksm) && cso) ? false : true;
877 static struct be_rx_page_info *
878 get_rx_page_info(struct be_adapter *adapter, u16 frag_idx)
880 struct be_rx_page_info *rx_page_info;
881 struct be_queue_info *rxq = &adapter->rx_obj.q;
883 rx_page_info = &adapter->rx_obj.page_info_tbl[frag_idx];
884 BUG_ON(!rx_page_info->page);
886 if (rx_page_info->last_page_user) {
887 pci_unmap_page(adapter->pdev, dma_unmap_addr(rx_page_info, bus),
888 adapter->big_page_size, PCI_DMA_FROMDEVICE);
889 rx_page_info->last_page_user = false;
892 atomic_dec(&rxq->used);
896 /* Throwaway the data in the Rx completion */
897 static void be_rx_compl_discard(struct be_adapter *adapter,
898 struct be_eth_rx_compl *rxcp)
900 struct be_queue_info *rxq = &adapter->rx_obj.q;
901 struct be_rx_page_info *page_info;
902 u16 rxq_idx, i, num_rcvd;
904 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
905 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
907 for (i = 0; i < num_rcvd; i++) {
908 page_info = get_rx_page_info(adapter, rxq_idx);
909 put_page(page_info->page);
910 memset(page_info, 0, sizeof(*page_info));
911 index_inc(&rxq_idx, rxq->len);
916 * skb_fill_rx_data forms a complete skb for an ether frame
919 static void skb_fill_rx_data(struct be_adapter *adapter,
920 struct sk_buff *skb, struct be_eth_rx_compl *rxcp,
923 struct be_queue_info *rxq = &adapter->rx_obj.q;
924 struct be_rx_page_info *page_info;
926 u32 pktsize, hdr_len, curr_frag_len, size;
929 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
930 pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
932 page_info = get_rx_page_info(adapter, rxq_idx);
934 start = page_address(page_info->page) + page_info->page_offset;
937 /* Copy data in the first descriptor of this completion */
938 curr_frag_len = min(pktsize, rx_frag_size);
940 /* Copy the header portion into skb_data */
941 hdr_len = min((u32)BE_HDR_LEN, curr_frag_len);
942 memcpy(skb->data, start, hdr_len);
943 skb->len = curr_frag_len;
944 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
945 /* Complete packet has now been moved to data */
946 put_page(page_info->page);
948 skb->tail += curr_frag_len;
950 skb_shinfo(skb)->nr_frags = 1;
951 skb_shinfo(skb)->frags[0].page = page_info->page;
952 skb_shinfo(skb)->frags[0].page_offset =
953 page_info->page_offset + hdr_len;
954 skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len;
955 skb->data_len = curr_frag_len - hdr_len;
956 skb->tail += hdr_len;
958 page_info->page = NULL;
960 if (pktsize <= rx_frag_size) {
961 BUG_ON(num_rcvd != 1);
965 /* More frags present for this completion */
967 for (i = 1, j = 0; i < num_rcvd; i++) {
968 size -= curr_frag_len;
969 index_inc(&rxq_idx, rxq->len);
970 page_info = get_rx_page_info(adapter, rxq_idx);
972 curr_frag_len = min(size, rx_frag_size);
974 /* Coalesce all frags from the same physical page in one slot */
975 if (page_info->page_offset == 0) {
978 skb_shinfo(skb)->frags[j].page = page_info->page;
979 skb_shinfo(skb)->frags[j].page_offset =
980 page_info->page_offset;
981 skb_shinfo(skb)->frags[j].size = 0;
982 skb_shinfo(skb)->nr_frags++;
984 put_page(page_info->page);
987 skb_shinfo(skb)->frags[j].size += curr_frag_len;
988 skb->len += curr_frag_len;
989 skb->data_len += curr_frag_len;
991 page_info->page = NULL;
993 BUG_ON(j > MAX_SKB_FRAGS);
996 be_rx_stats_update(adapter, pktsize, num_rcvd);
999 /* Process the RX completion indicated by rxcp when GRO is disabled */
1000 static void be_rx_compl_process(struct be_adapter *adapter,
1001 struct be_eth_rx_compl *rxcp)
1003 struct sk_buff *skb;
1008 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
1009 /* Is it a flush compl that has no data */
1010 if (unlikely(num_rcvd == 0))
1013 skb = netdev_alloc_skb_ip_align(adapter->netdev, BE_HDR_LEN);
1014 if (unlikely(!skb)) {
1015 if (net_ratelimit())
1016 dev_warn(&adapter->pdev->dev, "skb alloc failed\n");
1017 be_rx_compl_discard(adapter, rxcp);
1021 skb_fill_rx_data(adapter, skb, rxcp, num_rcvd);
1023 if (do_pkt_csum(rxcp, adapter->rx_csum))
1024 skb->ip_summed = CHECKSUM_NONE;
1026 skb->ip_summed = CHECKSUM_UNNECESSARY;
1028 skb->truesize = skb->len + sizeof(struct sk_buff);
1029 skb->protocol = eth_type_trans(skb, adapter->netdev);
1031 vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
1032 vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
1034 /* vlanf could be wrongly set in some cards.
1035 * ignore if vtm is not set */
1036 if ((adapter->function_mode & 0x400) && !vtm)
1039 if (unlikely(vlanf)) {
1040 if (!adapter->vlan_grp || adapter->vlans_added == 0) {
1044 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
1046 vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid);
1048 netif_receive_skb(skb);
1052 /* Process the RX completion indicated by rxcp when GRO is enabled */
1053 static void be_rx_compl_process_gro(struct be_adapter *adapter,
1054 struct be_eth_rx_compl *rxcp)
1056 struct be_rx_page_info *page_info;
1057 struct sk_buff *skb = NULL;
1058 struct be_queue_info *rxq = &adapter->rx_obj.q;
1059 struct be_eq_obj *eq_obj = &adapter->rx_eq;
1060 u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
1061 u16 i, rxq_idx = 0, vid, j;
1064 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
1065 /* Is it a flush compl that has no data */
1066 if (unlikely(num_rcvd == 0))
1069 pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
1070 vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
1071 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
1072 vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
1074 /* vlanf could be wrongly set in some cards.
1075 * ignore if vtm is not set */
1076 if ((adapter->function_mode & 0x400) && !vtm)
1079 skb = napi_get_frags(&eq_obj->napi);
1081 be_rx_compl_discard(adapter, rxcp);
1085 remaining = pkt_size;
1086 for (i = 0, j = -1; i < num_rcvd; i++) {
1087 page_info = get_rx_page_info(adapter, rxq_idx);
1089 curr_frag_len = min(remaining, rx_frag_size);
1091 /* Coalesce all frags from the same physical page in one slot */
1092 if (i == 0 || page_info->page_offset == 0) {
1093 /* First frag or Fresh page */
1095 skb_shinfo(skb)->frags[j].page = page_info->page;
1096 skb_shinfo(skb)->frags[j].page_offset =
1097 page_info->page_offset;
1098 skb_shinfo(skb)->frags[j].size = 0;
1100 put_page(page_info->page);
1102 skb_shinfo(skb)->frags[j].size += curr_frag_len;
1104 remaining -= curr_frag_len;
1105 index_inc(&rxq_idx, rxq->len);
1106 memset(page_info, 0, sizeof(*page_info));
1108 BUG_ON(j > MAX_SKB_FRAGS);
1110 skb_shinfo(skb)->nr_frags = j + 1;
1111 skb->len = pkt_size;
1112 skb->data_len = pkt_size;
1113 skb->truesize += pkt_size;
1114 skb->ip_summed = CHECKSUM_UNNECESSARY;
1116 if (likely(!vlanf)) {
1117 napi_gro_frags(&eq_obj->napi);
1119 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
1122 if (!adapter->vlan_grp || adapter->vlans_added == 0)
1125 vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, vid);
1128 be_rx_stats_update(adapter, pkt_size, num_rcvd);
1131 static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter)
1133 struct be_eth_rx_compl *rxcp = queue_tail_node(&adapter->rx_obj.cq);
1135 if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0)
1139 be_dws_le_to_cpu(rxcp, sizeof(*rxcp));
1141 queue_tail_inc(&adapter->rx_obj.cq);
1145 /* To reset the valid bit, we need to reset the whole word as
1146 * when walking the queue the valid entries are little-endian
1147 * and invalid entries are host endian
1149 static inline void be_rx_compl_reset(struct be_eth_rx_compl *rxcp)
1151 rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0;
1154 static inline struct page *be_alloc_pages(u32 size)
1156 gfp_t alloc_flags = GFP_ATOMIC;
1157 u32 order = get_order(size);
1159 alloc_flags |= __GFP_COMP;
1160 return alloc_pages(alloc_flags, order);
1164 * Allocate a page, split it to fragments of size rx_frag_size and post as
1165 * receive buffers to BE
1167 static void be_post_rx_frags(struct be_adapter *adapter)
1169 struct be_rx_page_info *page_info_tbl = adapter->rx_obj.page_info_tbl;
1170 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1171 struct be_queue_info *rxq = &adapter->rx_obj.q;
1172 struct page *pagep = NULL;
1173 struct be_eth_rx_d *rxd;
1174 u64 page_dmaaddr = 0, frag_dmaaddr;
1175 u32 posted, page_offset = 0;
1177 page_info = &page_info_tbl[rxq->head];
1178 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1180 pagep = be_alloc_pages(adapter->big_page_size);
1181 if (unlikely(!pagep)) {
1182 drvr_stats(adapter)->be_ethrx_post_fail++;
1185 page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0,
1186 adapter->big_page_size,
1187 PCI_DMA_FROMDEVICE);
1188 page_info->page_offset = 0;
1191 page_info->page_offset = page_offset + rx_frag_size;
1193 page_offset = page_info->page_offset;
1194 page_info->page = pagep;
1195 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1196 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1198 rxd = queue_head_node(rxq);
1199 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1200 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1202 /* Any space left in the current big page for another frag? */
1203 if ((page_offset + rx_frag_size + rx_frag_size) >
1204 adapter->big_page_size) {
1206 page_info->last_page_user = true;
1209 prev_page_info = page_info;
1210 queue_head_inc(rxq);
1211 page_info = &page_info_tbl[rxq->head];
1214 prev_page_info->last_page_user = true;
1217 atomic_add(posted, &rxq->used);
1218 be_rxq_notify(adapter, rxq->id, posted);
1219 } else if (atomic_read(&rxq->used) == 0) {
1220 /* Let be_worker replenish when memory is available */
1221 adapter->rx_post_starved = true;
1225 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1227 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1229 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1233 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1235 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1237 queue_tail_inc(tx_cq);
1241 static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index)
1243 struct be_queue_info *txq = &adapter->tx_obj.q;
1244 struct be_eth_wrb *wrb;
1245 struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
1246 struct sk_buff *sent_skb;
1247 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1248 bool unmap_skb_hdr = true;
1250 sent_skb = sent_skbs[txq->tail];
1252 sent_skbs[txq->tail] = NULL;
1254 /* skip header wrb */
1255 queue_tail_inc(txq);
1258 cur_index = txq->tail;
1259 wrb = queue_tail_node(txq);
1260 unmap_tx_frag(adapter->pdev, wrb, (unmap_skb_hdr &&
1261 skb_headlen(sent_skb)));
1262 unmap_skb_hdr = false;
1265 queue_tail_inc(txq);
1266 } while (cur_index != last_index);
1268 atomic_sub(num_wrbs, &txq->used);
1270 kfree_skb(sent_skb);
1273 static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj)
1275 struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1281 eqe->evt = le32_to_cpu(eqe->evt);
1282 queue_tail_inc(&eq_obj->q);
1286 static int event_handle(struct be_adapter *adapter,
1287 struct be_eq_obj *eq_obj)
1289 struct be_eq_entry *eqe;
1292 while ((eqe = event_get(eq_obj)) != NULL) {
1297 /* Deal with any spurious interrupts that come
1300 be_eq_notify(adapter, eq_obj->q.id, true, true, num);
1302 napi_schedule(&eq_obj->napi);
1307 /* Just read and notify events without processing them.
1308 * Used at the time of destroying event queues */
1309 static void be_eq_clean(struct be_adapter *adapter,
1310 struct be_eq_obj *eq_obj)
1312 struct be_eq_entry *eqe;
1315 while ((eqe = event_get(eq_obj)) != NULL) {
1321 be_eq_notify(adapter, eq_obj->q.id, false, true, num);
1324 static void be_rx_q_clean(struct be_adapter *adapter)
1326 struct be_rx_page_info *page_info;
1327 struct be_queue_info *rxq = &adapter->rx_obj.q;
1328 struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1329 struct be_eth_rx_compl *rxcp;
1332 /* First cleanup pending rx completions */
1333 while ((rxcp = be_rx_compl_get(adapter)) != NULL) {
1334 be_rx_compl_discard(adapter, rxcp);
1335 be_rx_compl_reset(rxcp);
1336 be_cq_notify(adapter, rx_cq->id, true, 1);
1339 /* Then free posted rx buffer that were not used */
1340 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1341 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1342 page_info = get_rx_page_info(adapter, tail);
1343 put_page(page_info->page);
1344 memset(page_info, 0, sizeof(*page_info));
1346 BUG_ON(atomic_read(&rxq->used));
1349 static void be_tx_compl_clean(struct be_adapter *adapter)
1351 struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1352 struct be_queue_info *txq = &adapter->tx_obj.q;
1353 struct be_eth_tx_compl *txcp;
1354 u16 end_idx, cmpl = 0, timeo = 0;
1355 struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
1356 struct sk_buff *sent_skb;
1359 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1361 while ((txcp = be_tx_compl_get(tx_cq))) {
1362 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1364 be_tx_compl_process(adapter, end_idx);
1368 be_cq_notify(adapter, tx_cq->id, false, cmpl);
1372 if (atomic_read(&txq->used) == 0 || ++timeo > 200)
1378 if (atomic_read(&txq->used))
1379 dev_err(&adapter->pdev->dev, "%d pending tx-completions\n",
1380 atomic_read(&txq->used));
1382 /* free posted tx for which compls will never arrive */
1383 while (atomic_read(&txq->used)) {
1384 sent_skb = sent_skbs[txq->tail];
1385 end_idx = txq->tail;
1387 wrb_cnt_for_skb(sent_skb, &dummy_wrb) - 1, txq->len);
1388 be_tx_compl_process(adapter, end_idx);
1392 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1394 struct be_queue_info *q;
1396 q = &adapter->mcc_obj.q;
1398 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1399 be_queue_free(adapter, q);
1401 q = &adapter->mcc_obj.cq;
1403 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1404 be_queue_free(adapter, q);
1407 /* Must be called only after TX qs are created as MCC shares TX EQ */
1408 static int be_mcc_queues_create(struct be_adapter *adapter)
1410 struct be_queue_info *q, *cq;
1412 /* Alloc MCC compl queue */
1413 cq = &adapter->mcc_obj.cq;
1414 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1415 sizeof(struct be_mcc_compl)))
1418 /* Ask BE to create MCC compl queue; share TX's eq */
1419 if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0))
1422 /* Alloc MCC queue */
1423 q = &adapter->mcc_obj.q;
1424 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1425 goto mcc_cq_destroy;
1427 /* Ask BE to create MCC queue */
1428 if (be_cmd_mccq_create(adapter, q, cq))
1434 be_queue_free(adapter, q);
1436 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1438 be_queue_free(adapter, cq);
1443 static void be_tx_queues_destroy(struct be_adapter *adapter)
1445 struct be_queue_info *q;
1447 q = &adapter->tx_obj.q;
1449 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1450 be_queue_free(adapter, q);
1452 q = &adapter->tx_obj.cq;
1454 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1455 be_queue_free(adapter, q);
1457 /* Clear any residual events */
1458 be_eq_clean(adapter, &adapter->tx_eq);
1460 q = &adapter->tx_eq.q;
1462 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1463 be_queue_free(adapter, q);
1466 static int be_tx_queues_create(struct be_adapter *adapter)
1468 struct be_queue_info *eq, *q, *cq;
1470 adapter->tx_eq.max_eqd = 0;
1471 adapter->tx_eq.min_eqd = 0;
1472 adapter->tx_eq.cur_eqd = 96;
1473 adapter->tx_eq.enable_aic = false;
1474 /* Alloc Tx Event queue */
1475 eq = &adapter->tx_eq.q;
1476 if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry)))
1479 /* Ask BE to create Tx Event queue */
1480 if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd))
1482 adapter->base_eq_id = adapter->tx_eq.q.id;
1484 /* Alloc TX eth compl queue */
1485 cq = &adapter->tx_obj.cq;
1486 if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1487 sizeof(struct be_eth_tx_compl)))
1490 /* Ask BE to create Tx eth compl queue */
1491 if (be_cmd_cq_create(adapter, cq, eq, false, false, 3))
1494 /* Alloc TX eth queue */
1495 q = &adapter->tx_obj.q;
1496 if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb)))
1499 /* Ask BE to create Tx eth queue */
1500 if (be_cmd_txq_create(adapter, q, cq))
1505 be_queue_free(adapter, q);
1507 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1509 be_queue_free(adapter, cq);
1511 be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1513 be_queue_free(adapter, eq);
1517 static void be_rx_queues_destroy(struct be_adapter *adapter)
1519 struct be_queue_info *q;
1521 q = &adapter->rx_obj.q;
1523 be_cmd_q_destroy(adapter, q, QTYPE_RXQ);
1525 /* After the rxq is invalidated, wait for a grace time
1526 * of 1ms for all dma to end and the flush compl to arrive
1529 be_rx_q_clean(adapter);
1531 be_queue_free(adapter, q);
1533 q = &adapter->rx_obj.cq;
1535 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1536 be_queue_free(adapter, q);
1538 /* Clear any residual events */
1539 be_eq_clean(adapter, &adapter->rx_eq);
1541 q = &adapter->rx_eq.q;
1543 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1544 be_queue_free(adapter, q);
1547 static int be_rx_queues_create(struct be_adapter *adapter)
1549 struct be_queue_info *eq, *q, *cq;
1552 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1553 adapter->rx_eq.max_eqd = BE_MAX_EQD;
1554 adapter->rx_eq.min_eqd = 0;
1555 adapter->rx_eq.cur_eqd = 0;
1556 adapter->rx_eq.enable_aic = true;
1558 /* Alloc Rx Event queue */
1559 eq = &adapter->rx_eq.q;
1560 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1561 sizeof(struct be_eq_entry));
1565 /* Ask BE to create Rx Event queue */
1566 rc = be_cmd_eq_create(adapter, eq, adapter->rx_eq.cur_eqd);
1570 /* Alloc RX eth compl queue */
1571 cq = &adapter->rx_obj.cq;
1572 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1573 sizeof(struct be_eth_rx_compl));
1577 /* Ask BE to create Rx eth compl queue */
1578 rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3);
1582 /* Alloc RX eth queue */
1583 q = &adapter->rx_obj.q;
1584 rc = be_queue_alloc(adapter, q, RX_Q_LEN, sizeof(struct be_eth_rx_d));
1588 /* Ask BE to create Rx eth queue */
1589 rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size,
1590 BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, false);
1596 be_queue_free(adapter, q);
1598 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1600 be_queue_free(adapter, cq);
1602 be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1604 be_queue_free(adapter, eq);
1608 /* There are 8 evt ids per func. Retruns the evt id's bit number */
1609 static inline int be_evt_bit_get(struct be_adapter *adapter, u32 eq_id)
1611 return eq_id - adapter->base_eq_id;
1614 static irqreturn_t be_intx(int irq, void *dev)
1616 struct be_adapter *adapter = dev;
1619 isr = ioread32(adapter->csr + CEV_ISR0_OFFSET +
1620 (adapter->tx_eq.q.id/ 8) * CEV_ISR_SIZE);
1624 event_handle(adapter, &adapter->tx_eq);
1625 event_handle(adapter, &adapter->rx_eq);
1630 static irqreturn_t be_msix_rx(int irq, void *dev)
1632 struct be_adapter *adapter = dev;
1634 event_handle(adapter, &adapter->rx_eq);
1639 static irqreturn_t be_msix_tx_mcc(int irq, void *dev)
1641 struct be_adapter *adapter = dev;
1643 event_handle(adapter, &adapter->tx_eq);
1648 static inline bool do_gro(struct be_adapter *adapter,
1649 struct be_eth_rx_compl *rxcp)
1651 int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp);
1652 int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
1655 drvr_stats(adapter)->be_rxcp_err++;
1657 return (tcp_frame && !err) ? true : false;
1660 int be_poll_rx(struct napi_struct *napi, int budget)
1662 struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1663 struct be_adapter *adapter =
1664 container_of(rx_eq, struct be_adapter, rx_eq);
1665 struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1666 struct be_eth_rx_compl *rxcp;
1669 adapter->stats.drvr_stats.be_rx_polls++;
1670 for (work_done = 0; work_done < budget; work_done++) {
1671 rxcp = be_rx_compl_get(adapter);
1675 if (do_gro(adapter, rxcp))
1676 be_rx_compl_process_gro(adapter, rxcp);
1678 be_rx_compl_process(adapter, rxcp);
1680 be_rx_compl_reset(rxcp);
1683 /* Refill the queue */
1684 if (atomic_read(&adapter->rx_obj.q.used) < RX_FRAGS_REFILL_WM)
1685 be_post_rx_frags(adapter);
1688 if (work_done < budget) {
1689 napi_complete(napi);
1690 be_cq_notify(adapter, rx_cq->id, true, work_done);
1692 /* More to be consumed; continue with interrupts disabled */
1693 be_cq_notify(adapter, rx_cq->id, false, work_done);
1698 /* As TX and MCC share the same EQ check for both TX and MCC completions.
1699 * For TX/MCC we don't honour budget; consume everything
1701 static int be_poll_tx_mcc(struct napi_struct *napi, int budget)
1703 struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1704 struct be_adapter *adapter =
1705 container_of(tx_eq, struct be_adapter, tx_eq);
1706 struct be_queue_info *txq = &adapter->tx_obj.q;
1707 struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1708 struct be_eth_tx_compl *txcp;
1709 int tx_compl = 0, mcc_compl, status = 0;
1712 while ((txcp = be_tx_compl_get(tx_cq))) {
1713 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1715 be_tx_compl_process(adapter, end_idx);
1719 mcc_compl = be_process_mcc(adapter, &status);
1721 napi_complete(napi);
1724 struct be_mcc_obj *mcc_obj = &adapter->mcc_obj;
1725 be_cq_notify(adapter, mcc_obj->cq.id, true, mcc_compl);
1729 be_cq_notify(adapter, adapter->tx_obj.cq.id, true, tx_compl);
1731 /* As Tx wrbs have been freed up, wake up netdev queue if
1732 * it was stopped due to lack of tx wrbs.
1734 if (netif_queue_stopped(adapter->netdev) &&
1735 atomic_read(&txq->used) < txq->len / 2) {
1736 netif_wake_queue(adapter->netdev);
1739 drvr_stats(adapter)->be_tx_events++;
1740 drvr_stats(adapter)->be_tx_compl += tx_compl;
1746 static inline bool be_detect_ue(struct be_adapter *adapter)
1748 u32 online0 = 0, online1 = 0;
1750 pci_read_config_dword(adapter->pdev, PCICFG_ONLINE0, &online0);
1752 pci_read_config_dword(adapter->pdev, PCICFG_ONLINE1, &online1);
1754 if (!online0 || !online1) {
1755 adapter->ue_detected = true;
1756 dev_err(&adapter->pdev->dev,
1757 "UE Detected!! online0=%d online1=%d\n",
1765 void be_dump_ue(struct be_adapter *adapter)
1767 u32 ue_status_lo, ue_status_hi, ue_status_lo_mask, ue_status_hi_mask;
1770 pci_read_config_dword(adapter->pdev,
1771 PCICFG_UE_STATUS_LOW, &ue_status_lo);
1772 pci_read_config_dword(adapter->pdev,
1773 PCICFG_UE_STATUS_HIGH, &ue_status_hi);
1774 pci_read_config_dword(adapter->pdev,
1775 PCICFG_UE_STATUS_LOW_MASK, &ue_status_lo_mask);
1776 pci_read_config_dword(adapter->pdev,
1777 PCICFG_UE_STATUS_HI_MASK, &ue_status_hi_mask);
1779 ue_status_lo = (ue_status_lo & (~ue_status_lo_mask));
1780 ue_status_hi = (ue_status_hi & (~ue_status_hi_mask));
1783 for (i = 0; ue_status_lo; ue_status_lo >>= 1, i++) {
1784 if (ue_status_lo & 1)
1785 dev_err(&adapter->pdev->dev,
1786 "UE: %s bit set\n", ue_status_low_desc[i]);
1790 for (i = 0; ue_status_hi; ue_status_hi >>= 1, i++) {
1791 if (ue_status_hi & 1)
1792 dev_err(&adapter->pdev->dev,
1793 "UE: %s bit set\n", ue_status_hi_desc[i]);
1799 static void be_worker(struct work_struct *work)
1801 struct be_adapter *adapter =
1802 container_of(work, struct be_adapter, work.work);
1804 if (!adapter->stats_ioctl_sent)
1805 be_cmd_get_stats(adapter, &adapter->stats.cmd);
1808 be_rx_eqd_update(adapter);
1810 be_tx_rate_update(adapter);
1811 be_rx_rate_update(adapter);
1813 if (adapter->rx_post_starved) {
1814 adapter->rx_post_starved = false;
1815 be_post_rx_frags(adapter);
1817 if (!adapter->ue_detected) {
1818 if (be_detect_ue(adapter))
1819 be_dump_ue(adapter);
1822 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
1825 static void be_msix_disable(struct be_adapter *adapter)
1827 if (adapter->msix_enabled) {
1828 pci_disable_msix(adapter->pdev);
1829 adapter->msix_enabled = false;
1833 static void be_msix_enable(struct be_adapter *adapter)
1837 for (i = 0; i < BE_NUM_MSIX_VECTORS; i++)
1838 adapter->msix_entries[i].entry = i;
1840 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
1841 BE_NUM_MSIX_VECTORS);
1843 adapter->msix_enabled = true;
1846 static void be_sriov_enable(struct be_adapter *adapter)
1848 be_check_sriov_fn_type(adapter);
1849 #ifdef CONFIG_PCI_IOV
1850 if (be_physfn(adapter) && num_vfs) {
1853 status = pci_enable_sriov(adapter->pdev, num_vfs);
1854 adapter->sriov_enabled = status ? false : true;
1859 static void be_sriov_disable(struct be_adapter *adapter)
1861 #ifdef CONFIG_PCI_IOV
1862 if (adapter->sriov_enabled) {
1863 pci_disable_sriov(adapter->pdev);
1864 adapter->sriov_enabled = false;
1869 static inline int be_msix_vec_get(struct be_adapter *adapter, u32 eq_id)
1871 return adapter->msix_entries[
1872 be_evt_bit_get(adapter, eq_id)].vector;
1875 static int be_request_irq(struct be_adapter *adapter,
1876 struct be_eq_obj *eq_obj,
1877 void *handler, char *desc)
1879 struct net_device *netdev = adapter->netdev;
1882 sprintf(eq_obj->desc, "%s-%s", netdev->name, desc);
1883 vec = be_msix_vec_get(adapter, eq_obj->q.id);
1884 return request_irq(vec, handler, 0, eq_obj->desc, adapter);
1887 static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj)
1889 int vec = be_msix_vec_get(adapter, eq_obj->q.id);
1890 free_irq(vec, adapter);
1893 static int be_msix_register(struct be_adapter *adapter)
1897 status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx");
1901 status = be_request_irq(adapter, &adapter->rx_eq, be_msix_rx, "rx");
1908 be_free_irq(adapter, &adapter->tx_eq);
1910 dev_warn(&adapter->pdev->dev,
1911 "MSIX Request IRQ failed - err %d\n", status);
1912 pci_disable_msix(adapter->pdev);
1913 adapter->msix_enabled = false;
1917 static int be_irq_register(struct be_adapter *adapter)
1919 struct net_device *netdev = adapter->netdev;
1922 if (adapter->msix_enabled) {
1923 status = be_msix_register(adapter);
1926 /* INTx is not supported for VF */
1927 if (!be_physfn(adapter))
1932 netdev->irq = adapter->pdev->irq;
1933 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
1936 dev_err(&adapter->pdev->dev,
1937 "INTx request IRQ failed - err %d\n", status);
1941 adapter->isr_registered = true;
1945 static void be_irq_unregister(struct be_adapter *adapter)
1947 struct net_device *netdev = adapter->netdev;
1949 if (!adapter->isr_registered)
1953 if (!adapter->msix_enabled) {
1954 free_irq(netdev->irq, adapter);
1959 be_free_irq(adapter, &adapter->tx_eq);
1960 be_free_irq(adapter, &adapter->rx_eq);
1962 adapter->isr_registered = false;
1965 static int be_close(struct net_device *netdev)
1967 struct be_adapter *adapter = netdev_priv(netdev);
1968 struct be_eq_obj *rx_eq = &adapter->rx_eq;
1969 struct be_eq_obj *tx_eq = &adapter->tx_eq;
1972 cancel_delayed_work_sync(&adapter->work);
1974 be_async_mcc_disable(adapter);
1976 netif_stop_queue(netdev);
1977 netif_carrier_off(netdev);
1978 adapter->link_up = false;
1980 be_intr_set(adapter, false);
1982 if (adapter->msix_enabled) {
1983 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1984 synchronize_irq(vec);
1985 vec = be_msix_vec_get(adapter, rx_eq->q.id);
1986 synchronize_irq(vec);
1988 synchronize_irq(netdev->irq);
1990 be_irq_unregister(adapter);
1992 napi_disable(&rx_eq->napi);
1993 napi_disable(&tx_eq->napi);
1995 /* Wait for all pending tx completions to arrive so that
1996 * all tx skbs are freed.
1998 be_tx_compl_clean(adapter);
2003 static int be_open(struct net_device *netdev)
2005 struct be_adapter *adapter = netdev_priv(netdev);
2006 struct be_eq_obj *rx_eq = &adapter->rx_eq;
2007 struct be_eq_obj *tx_eq = &adapter->tx_eq;
2013 /* First time posting */
2014 be_post_rx_frags(adapter);
2016 napi_enable(&rx_eq->napi);
2017 napi_enable(&tx_eq->napi);
2019 be_irq_register(adapter);
2021 be_intr_set(adapter, true);
2023 /* The evt queues are created in unarmed state; arm them */
2024 be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
2025 be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
2027 /* Rx compl queue may be in unarmed state; rearm it */
2028 be_cq_notify(adapter, adapter->rx_obj.cq.id, true, 0);
2030 /* Now that interrupts are on we can process async mcc */
2031 be_async_mcc_enable(adapter);
2033 schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
2035 status = be_cmd_link_status_query(adapter, &link_up, &mac_speed,
2039 be_link_status_update(adapter, link_up);
2041 if (be_physfn(adapter)) {
2042 status = be_vid_config(adapter, false, 0);
2046 status = be_cmd_set_flow_control(adapter,
2047 adapter->tx_fc, adapter->rx_fc);
2054 be_close(adapter->netdev);
2058 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2060 struct be_dma_mem cmd;
2064 memset(mac, 0, ETH_ALEN);
2066 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2067 cmd.va = pci_alloc_consistent(adapter->pdev, cmd.size, &cmd.dma);
2070 memset(cmd.va, 0, cmd.size);
2073 status = pci_write_config_dword(adapter->pdev,
2074 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2076 dev_err(&adapter->pdev->dev,
2077 "Could not enable Wake-on-lan\n");
2078 pci_free_consistent(adapter->pdev, cmd.size, cmd.va,
2082 status = be_cmd_enable_magic_wol(adapter,
2083 adapter->netdev->dev_addr, &cmd);
2084 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2085 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2087 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2088 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2089 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2092 pci_free_consistent(adapter->pdev, cmd.size, cmd.va, cmd.dma);
2096 static int be_setup(struct be_adapter *adapter)
2098 struct net_device *netdev = adapter->netdev;
2099 u32 cap_flags, en_flags, vf = 0;
2103 cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST;
2105 if (be_physfn(adapter)) {
2106 cap_flags |= BE_IF_FLAGS_MCAST_PROMISCUOUS |
2107 BE_IF_FLAGS_PROMISCUOUS |
2108 BE_IF_FLAGS_PASS_L3L4_ERRORS;
2109 en_flags |= BE_IF_FLAGS_PASS_L3L4_ERRORS;
2112 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2113 netdev->dev_addr, false/* pmac_invalid */,
2114 &adapter->if_handle, &adapter->pmac_id, 0);
2118 if (be_physfn(adapter)) {
2119 while (vf < num_vfs) {
2120 cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED
2121 | BE_IF_FLAGS_BROADCAST;
2122 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2124 &adapter->vf_cfg[vf].vf_if_handle,
2127 dev_err(&adapter->pdev->dev,
2128 "Interface Create failed for VF %d\n", vf);
2131 adapter->vf_cfg[vf].vf_pmac_id = BE_INVALID_PMAC_ID;
2134 } else if (!be_physfn(adapter)) {
2135 status = be_cmd_mac_addr_query(adapter, mac,
2136 MAC_ADDRESS_TYPE_NETWORK, false, adapter->if_handle);
2138 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2139 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2143 status = be_tx_queues_create(adapter);
2147 status = be_rx_queues_create(adapter);
2151 status = be_mcc_queues_create(adapter);
2155 adapter->link_speed = -1;
2160 be_rx_queues_destroy(adapter);
2162 be_tx_queues_destroy(adapter);
2164 for (vf = 0; vf < num_vfs; vf++)
2165 if (adapter->vf_cfg[vf].vf_if_handle)
2166 be_cmd_if_destroy(adapter,
2167 adapter->vf_cfg[vf].vf_if_handle);
2168 be_cmd_if_destroy(adapter, adapter->if_handle);
2173 static int be_clear(struct be_adapter *adapter)
2175 be_mcc_queues_destroy(adapter);
2176 be_rx_queues_destroy(adapter);
2177 be_tx_queues_destroy(adapter);
2179 be_cmd_if_destroy(adapter, adapter->if_handle);
2181 /* tell fw we're done with firing cmds */
2182 be_cmd_fw_clean(adapter);
2187 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
2188 char flash_cookie[2][16] = {"*** SE FLAS",
2189 "H DIRECTORY *** "};
2191 static bool be_flash_redboot(struct be_adapter *adapter,
2192 const u8 *p, u32 img_start, int image_size,
2199 crc_offset = hdr_size + img_start + image_size - 4;
2203 status = be_cmd_get_flash_crc(adapter, flashed_crc,
2206 dev_err(&adapter->pdev->dev,
2207 "could not get crc from flash, not flashing redboot\n");
2211 /*update redboot only if crc does not match*/
2212 if (!memcmp(flashed_crc, p, 4))
2218 static int be_flash_data(struct be_adapter *adapter,
2219 const struct firmware *fw,
2220 struct be_dma_mem *flash_cmd, int num_of_images)
2223 int status = 0, i, filehdr_size = 0;
2224 u32 total_bytes = 0, flash_op;
2226 const u8 *p = fw->data;
2227 struct be_cmd_write_flashrom *req = flash_cmd->va;
2228 struct flash_comp *pflashcomp;
2231 struct flash_comp gen3_flash_types[9] = {
2232 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, IMG_TYPE_ISCSI_ACTIVE,
2233 FLASH_IMAGE_MAX_SIZE_g3},
2234 { FLASH_REDBOOT_START_g3, IMG_TYPE_REDBOOT,
2235 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3},
2236 { FLASH_iSCSI_BIOS_START_g3, IMG_TYPE_BIOS,
2237 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2238 { FLASH_PXE_BIOS_START_g3, IMG_TYPE_PXE_BIOS,
2239 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2240 { FLASH_FCoE_BIOS_START_g3, IMG_TYPE_FCOE_BIOS,
2241 FLASH_BIOS_IMAGE_MAX_SIZE_g3},
2242 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, IMG_TYPE_ISCSI_BACKUP,
2243 FLASH_IMAGE_MAX_SIZE_g3},
2244 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, IMG_TYPE_FCOE_FW_ACTIVE,
2245 FLASH_IMAGE_MAX_SIZE_g3},
2246 { FLASH_FCoE_BACKUP_IMAGE_START_g3, IMG_TYPE_FCOE_FW_BACKUP,
2247 FLASH_IMAGE_MAX_SIZE_g3},
2248 { FLASH_NCSI_START_g3, IMG_TYPE_NCSI_FW,
2249 FLASH_NCSI_IMAGE_MAX_SIZE_g3}
2251 struct flash_comp gen2_flash_types[8] = {
2252 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, IMG_TYPE_ISCSI_ACTIVE,
2253 FLASH_IMAGE_MAX_SIZE_g2},
2254 { FLASH_REDBOOT_START_g2, IMG_TYPE_REDBOOT,
2255 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2},
2256 { FLASH_iSCSI_BIOS_START_g2, IMG_TYPE_BIOS,
2257 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2258 { FLASH_PXE_BIOS_START_g2, IMG_TYPE_PXE_BIOS,
2259 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2260 { FLASH_FCoE_BIOS_START_g2, IMG_TYPE_FCOE_BIOS,
2261 FLASH_BIOS_IMAGE_MAX_SIZE_g2},
2262 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, IMG_TYPE_ISCSI_BACKUP,
2263 FLASH_IMAGE_MAX_SIZE_g2},
2264 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, IMG_TYPE_FCOE_FW_ACTIVE,
2265 FLASH_IMAGE_MAX_SIZE_g2},
2266 { FLASH_FCoE_BACKUP_IMAGE_START_g2, IMG_TYPE_FCOE_FW_BACKUP,
2267 FLASH_IMAGE_MAX_SIZE_g2}
2270 if (adapter->generation == BE_GEN3) {
2271 pflashcomp = gen3_flash_types;
2272 filehdr_size = sizeof(struct flash_file_hdr_g3);
2275 pflashcomp = gen2_flash_types;
2276 filehdr_size = sizeof(struct flash_file_hdr_g2);
2279 for (i = 0; i < num_comp; i++) {
2280 if ((pflashcomp[i].optype == IMG_TYPE_NCSI_FW) &&
2281 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
2283 if ((pflashcomp[i].optype == IMG_TYPE_REDBOOT) &&
2284 (!be_flash_redboot(adapter, fw->data,
2285 pflashcomp[i].offset, pflashcomp[i].size,
2289 p += filehdr_size + pflashcomp[i].offset
2290 + (num_of_images * sizeof(struct image_hdr));
2291 if (p + pflashcomp[i].size > fw->data + fw->size)
2293 total_bytes = pflashcomp[i].size;
2294 while (total_bytes) {
2295 if (total_bytes > 32*1024)
2296 num_bytes = 32*1024;
2298 num_bytes = total_bytes;
2299 total_bytes -= num_bytes;
2302 flash_op = FLASHROM_OPER_FLASH;
2304 flash_op = FLASHROM_OPER_SAVE;
2305 memcpy(req->params.data_buf, p, num_bytes);
2307 status = be_cmd_write_flashrom(adapter, flash_cmd,
2308 pflashcomp[i].optype, flash_op, num_bytes);
2310 dev_err(&adapter->pdev->dev,
2311 "cmd to write to flash rom failed.\n");
2320 static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr)
2324 if (fhdr->build[0] == '3')
2326 else if (fhdr->build[0] == '2')
2332 int be_load_fw(struct be_adapter *adapter, u8 *func)
2334 char fw_file[ETHTOOL_FLASH_MAX_FILENAME];
2335 const struct firmware *fw;
2336 struct flash_file_hdr_g2 *fhdr;
2337 struct flash_file_hdr_g3 *fhdr3;
2338 struct image_hdr *img_hdr_ptr = NULL;
2339 struct be_dma_mem flash_cmd;
2340 int status, i = 0, num_imgs = 0;
2343 strcpy(fw_file, func);
2345 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
2350 fhdr = (struct flash_file_hdr_g2 *) p;
2351 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
2353 flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
2354 flash_cmd.va = pci_alloc_consistent(adapter->pdev, flash_cmd.size,
2356 if (!flash_cmd.va) {
2358 dev_err(&adapter->pdev->dev,
2359 "Memory allocation failure while flashing\n");
2363 if ((adapter->generation == BE_GEN3) &&
2364 (get_ufigen_type(fhdr) == BE_GEN3)) {
2365 fhdr3 = (struct flash_file_hdr_g3 *) fw->data;
2366 num_imgs = le32_to_cpu(fhdr3->num_imgs);
2367 for (i = 0; i < num_imgs; i++) {
2368 img_hdr_ptr = (struct image_hdr *) (fw->data +
2369 (sizeof(struct flash_file_hdr_g3) +
2370 i * sizeof(struct image_hdr)));
2371 if (le32_to_cpu(img_hdr_ptr->imageid) == 1)
2372 status = be_flash_data(adapter, fw, &flash_cmd,
2375 } else if ((adapter->generation == BE_GEN2) &&
2376 (get_ufigen_type(fhdr) == BE_GEN2)) {
2377 status = be_flash_data(adapter, fw, &flash_cmd, 0);
2379 dev_err(&adapter->pdev->dev,
2380 "UFI and Interface are not compatible for flashing\n");
2384 pci_free_consistent(adapter->pdev, flash_cmd.size, flash_cmd.va,
2387 dev_err(&adapter->pdev->dev, "Firmware load error\n");
2391 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
2394 release_firmware(fw);
2398 static struct net_device_ops be_netdev_ops = {
2399 .ndo_open = be_open,
2400 .ndo_stop = be_close,
2401 .ndo_start_xmit = be_xmit,
2402 .ndo_get_stats = be_get_stats,
2403 .ndo_set_rx_mode = be_set_multicast_list,
2404 .ndo_set_mac_address = be_mac_addr_set,
2405 .ndo_change_mtu = be_change_mtu,
2406 .ndo_validate_addr = eth_validate_addr,
2407 .ndo_vlan_rx_register = be_vlan_register,
2408 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
2409 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
2410 .ndo_set_vf_mac = be_set_vf_mac,
2411 .ndo_set_vf_vlan = be_set_vf_vlan,
2412 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
2413 .ndo_get_vf_config = be_get_vf_config
2416 static void be_netdev_init(struct net_device *netdev)
2418 struct be_adapter *adapter = netdev_priv(netdev);
2420 netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
2421 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_HW_CSUM |
2422 NETIF_F_GRO | NETIF_F_TSO6;
2424 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_HW_CSUM;
2426 netdev->flags |= IFF_MULTICAST;
2428 adapter->rx_csum = true;
2430 /* Default settings for Rx and Tx flow control */
2431 adapter->rx_fc = true;
2432 adapter->tx_fc = true;
2434 netif_set_gso_max_size(netdev, 65535);
2436 BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
2438 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
2440 netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx,
2442 netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc,
2445 netif_carrier_off(netdev);
2446 netif_stop_queue(netdev);
2449 static void be_unmap_pci_bars(struct be_adapter *adapter)
2452 iounmap(adapter->csr);
2454 iounmap(adapter->db);
2455 if (adapter->pcicfg && be_physfn(adapter))
2456 iounmap(adapter->pcicfg);
2459 static int be_map_pci_bars(struct be_adapter *adapter)
2462 int pcicfg_reg, db_reg;
2464 if (be_physfn(adapter)) {
2465 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
2466 pci_resource_len(adapter->pdev, 2));
2469 adapter->csr = addr;
2472 if (adapter->generation == BE_GEN2) {
2477 if (be_physfn(adapter))
2482 addr = ioremap_nocache(pci_resource_start(adapter->pdev, db_reg),
2483 pci_resource_len(adapter->pdev, db_reg));
2488 if (be_physfn(adapter)) {
2489 addr = ioremap_nocache(
2490 pci_resource_start(adapter->pdev, pcicfg_reg),
2491 pci_resource_len(adapter->pdev, pcicfg_reg));
2494 adapter->pcicfg = addr;
2496 adapter->pcicfg = adapter->db + SRIOV_VF_PCICFG_OFFSET;
2500 be_unmap_pci_bars(adapter);
2505 static void be_ctrl_cleanup(struct be_adapter *adapter)
2507 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
2509 be_unmap_pci_bars(adapter);
2512 pci_free_consistent(adapter->pdev, mem->size,
2515 mem = &adapter->mc_cmd_mem;
2517 pci_free_consistent(adapter->pdev, mem->size,
2521 static int be_ctrl_init(struct be_adapter *adapter)
2523 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
2524 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
2525 struct be_dma_mem *mc_cmd_mem = &adapter->mc_cmd_mem;
2528 status = be_map_pci_bars(adapter);
2532 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
2533 mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev,
2534 mbox_mem_alloc->size, &mbox_mem_alloc->dma);
2535 if (!mbox_mem_alloc->va) {
2537 goto unmap_pci_bars;
2540 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
2541 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
2542 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
2543 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
2545 mc_cmd_mem->size = sizeof(struct be_cmd_req_mcast_mac_config);
2546 mc_cmd_mem->va = pci_alloc_consistent(adapter->pdev, mc_cmd_mem->size,
2548 if (mc_cmd_mem->va == NULL) {
2552 memset(mc_cmd_mem->va, 0, mc_cmd_mem->size);
2554 spin_lock_init(&adapter->mbox_lock);
2555 spin_lock_init(&adapter->mcc_lock);
2556 spin_lock_init(&adapter->mcc_cq_lock);
2558 init_completion(&adapter->flash_compl);
2559 pci_save_state(adapter->pdev);
2563 pci_free_consistent(adapter->pdev, mbox_mem_alloc->size,
2564 mbox_mem_alloc->va, mbox_mem_alloc->dma);
2567 be_unmap_pci_bars(adapter);
2573 static void be_stats_cleanup(struct be_adapter *adapter)
2575 struct be_stats_obj *stats = &adapter->stats;
2576 struct be_dma_mem *cmd = &stats->cmd;
2579 pci_free_consistent(adapter->pdev, cmd->size,
2583 static int be_stats_init(struct be_adapter *adapter)
2585 struct be_stats_obj *stats = &adapter->stats;
2586 struct be_dma_mem *cmd = &stats->cmd;
2588 cmd->size = sizeof(struct be_cmd_req_get_stats);
2589 cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma);
2590 if (cmd->va == NULL)
2592 memset(cmd->va, 0, cmd->size);
2596 static void __devexit be_remove(struct pci_dev *pdev)
2598 struct be_adapter *adapter = pci_get_drvdata(pdev);
2603 unregister_netdev(adapter->netdev);
2607 be_stats_cleanup(adapter);
2609 be_ctrl_cleanup(adapter);
2611 be_sriov_disable(adapter);
2613 be_msix_disable(adapter);
2615 pci_set_drvdata(pdev, NULL);
2616 pci_release_regions(pdev);
2617 pci_disable_device(pdev);
2619 free_netdev(adapter->netdev);
2622 static int be_get_config(struct be_adapter *adapter)
2627 status = be_cmd_get_fw_ver(adapter, adapter->fw_ver);
2631 status = be_cmd_query_fw_cfg(adapter,
2632 &adapter->port_num, &adapter->function_mode);
2636 memset(mac, 0, ETH_ALEN);
2638 if (be_physfn(adapter)) {
2639 status = be_cmd_mac_addr_query(adapter, mac,
2640 MAC_ADDRESS_TYPE_NETWORK, true /*permanent */, 0);
2645 if (!is_valid_ether_addr(mac))
2646 return -EADDRNOTAVAIL;
2648 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2649 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2652 if (adapter->function_mode & 0x400)
2653 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/4;
2655 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
2660 static int __devinit be_probe(struct pci_dev *pdev,
2661 const struct pci_device_id *pdev_id)
2664 struct be_adapter *adapter;
2665 struct net_device *netdev;
2668 status = pci_enable_device(pdev);
2672 status = pci_request_regions(pdev, DRV_NAME);
2675 pci_set_master(pdev);
2677 netdev = alloc_etherdev(sizeof(struct be_adapter));
2678 if (netdev == NULL) {
2682 adapter = netdev_priv(netdev);
2684 switch (pdev->device) {
2687 adapter->generation = BE_GEN2;
2691 adapter->generation = BE_GEN3;
2694 adapter->generation = 0;
2697 adapter->pdev = pdev;
2698 pci_set_drvdata(pdev, adapter);
2699 adapter->netdev = netdev;
2700 be_netdev_init(netdev);
2701 SET_NETDEV_DEV(netdev, &pdev->dev);
2703 be_msix_enable(adapter);
2705 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
2707 netdev->features |= NETIF_F_HIGHDMA;
2709 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2711 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
2716 be_sriov_enable(adapter);
2718 status = be_ctrl_init(adapter);
2722 /* sync up with fw's ready state */
2723 if (be_physfn(adapter)) {
2724 status = be_cmd_POST(adapter);
2729 /* tell fw we're ready to fire cmds */
2730 status = be_cmd_fw_init(adapter);
2734 if (be_physfn(adapter)) {
2735 status = be_cmd_reset_function(adapter);
2740 status = be_stats_init(adapter);
2744 status = be_get_config(adapter);
2748 INIT_DELAYED_WORK(&adapter->work, be_worker);
2750 status = be_setup(adapter);
2754 status = register_netdev(netdev);
2758 dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num);
2764 be_stats_cleanup(adapter);
2766 be_ctrl_cleanup(adapter);
2768 be_msix_disable(adapter);
2769 be_sriov_disable(adapter);
2770 free_netdev(adapter->netdev);
2771 pci_set_drvdata(pdev, NULL);
2773 pci_release_regions(pdev);
2775 pci_disable_device(pdev);
2777 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
2781 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
2783 struct be_adapter *adapter = pci_get_drvdata(pdev);
2784 struct net_device *netdev = adapter->netdev;
2787 be_setup_wol(adapter, true);
2789 netif_device_detach(netdev);
2790 if (netif_running(netdev)) {
2795 be_cmd_get_flow_control(adapter, &adapter->tx_fc, &adapter->rx_fc);
2798 pci_save_state(pdev);
2799 pci_disable_device(pdev);
2800 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2804 static int be_resume(struct pci_dev *pdev)
2807 struct be_adapter *adapter = pci_get_drvdata(pdev);
2808 struct net_device *netdev = adapter->netdev;
2810 netif_device_detach(netdev);
2812 status = pci_enable_device(pdev);
2816 pci_set_power_state(pdev, 0);
2817 pci_restore_state(pdev);
2819 /* tell fw we're ready to fire cmds */
2820 status = be_cmd_fw_init(adapter);
2825 if (netif_running(netdev)) {
2830 netif_device_attach(netdev);
2833 be_setup_wol(adapter, false);
2838 * An FLR will stop BE from DMAing any data.
2840 static void be_shutdown(struct pci_dev *pdev)
2842 struct be_adapter *adapter = pci_get_drvdata(pdev);
2843 struct net_device *netdev = adapter->netdev;
2845 netif_device_detach(netdev);
2847 be_cmd_reset_function(adapter);
2850 be_setup_wol(adapter, true);
2852 pci_disable_device(pdev);
2855 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
2856 pci_channel_state_t state)
2858 struct be_adapter *adapter = pci_get_drvdata(pdev);
2859 struct net_device *netdev = adapter->netdev;
2861 dev_err(&adapter->pdev->dev, "EEH error detected\n");
2863 adapter->eeh_err = true;
2865 netif_device_detach(netdev);
2867 if (netif_running(netdev)) {
2874 if (state == pci_channel_io_perm_failure)
2875 return PCI_ERS_RESULT_DISCONNECT;
2877 pci_disable_device(pdev);
2879 return PCI_ERS_RESULT_NEED_RESET;
2882 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
2884 struct be_adapter *adapter = pci_get_drvdata(pdev);
2887 dev_info(&adapter->pdev->dev, "EEH reset\n");
2888 adapter->eeh_err = false;
2890 status = pci_enable_device(pdev);
2892 return PCI_ERS_RESULT_DISCONNECT;
2894 pci_set_master(pdev);
2895 pci_set_power_state(pdev, 0);
2896 pci_restore_state(pdev);
2898 /* Check if card is ok and fw is ready */
2899 status = be_cmd_POST(adapter);
2901 return PCI_ERS_RESULT_DISCONNECT;
2903 return PCI_ERS_RESULT_RECOVERED;
2906 static void be_eeh_resume(struct pci_dev *pdev)
2909 struct be_adapter *adapter = pci_get_drvdata(pdev);
2910 struct net_device *netdev = adapter->netdev;
2912 dev_info(&adapter->pdev->dev, "EEH resume\n");
2914 pci_save_state(pdev);
2916 /* tell fw we're ready to fire cmds */
2917 status = be_cmd_fw_init(adapter);
2921 status = be_setup(adapter);
2925 if (netif_running(netdev)) {
2926 status = be_open(netdev);
2930 netif_device_attach(netdev);
2933 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
2936 static struct pci_error_handlers be_eeh_handlers = {
2937 .error_detected = be_eeh_err_detected,
2938 .slot_reset = be_eeh_reset,
2939 .resume = be_eeh_resume,
2942 static struct pci_driver be_driver = {
2944 .id_table = be_dev_ids,
2946 .remove = be_remove,
2947 .suspend = be_suspend,
2948 .resume = be_resume,
2949 .shutdown = be_shutdown,
2950 .err_handler = &be_eeh_handlers
2953 static int __init be_init_module(void)
2955 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
2956 rx_frag_size != 2048) {
2957 printk(KERN_WARNING DRV_NAME
2958 " : Module param rx_frag_size must be 2048/4096/8192."
2960 rx_frag_size = 2048;
2964 printk(KERN_WARNING DRV_NAME
2965 " : Module param num_vfs must not be greater than 32."
2970 return pci_register_driver(&be_driver);
2972 module_init(be_init_module);
2974 static void __exit be_exit_module(void)
2976 pci_unregister_driver(&be_driver);
2978 module_exit(be_exit_module);